CN109415959A - For making the device of the exhausted by crankcase of internal combustion engine - Google Patents
For making the device of the exhausted by crankcase of internal combustion engine Download PDFInfo
- Publication number
- CN109415959A CN109415959A CN201780039976.1A CN201780039976A CN109415959A CN 109415959 A CN109415959 A CN 109415959A CN 201780039976 A CN201780039976 A CN 201780039976A CN 109415959 A CN109415959 A CN 109415959A
- Authority
- CN
- China
- Prior art keywords
- internal combustion
- combustion engine
- crankcase
- branch
- pipeline
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M13/00—Crankcase ventilating or breathing
- F01M13/04—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
- F01M11/02—Arrangements of lubricant conduits
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M13/00—Crankcase ventilating or breathing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M13/00—Crankcase ventilating or breathing
- F01M13/02—Crankcase ventilating or breathing by means of additional source of positive or negative pressure
- F01M13/021—Crankcase ventilating or breathing by means of additional source of positive or negative pressure of negative pressure
- F01M13/022—Crankcase ventilating or breathing by means of additional source of positive or negative pressure of negative pressure using engine inlet suction
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M13/00—Crankcase ventilating or breathing
- F01M2013/0038—Layout of crankcase breathing systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M13/00—Crankcase ventilating or breathing
- F01M2013/0038—Layout of crankcase breathing systems
- F01M2013/0044—Layout of crankcase breathing systems with one or more valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M13/00—Crankcase ventilating or breathing
- F01M13/02—Crankcase ventilating or breathing by means of additional source of positive or negative pressure
- F01M13/021—Crankcase ventilating or breathing by means of additional source of positive or negative pressure of negative pressure
- F01M2013/027—Crankcase ventilating or breathing by means of additional source of positive or negative pressure of negative pressure with a turbo charger or compressor
Abstract
The present invention relates to a kind of internal combustion engines (2) including engine cylinder body (24) and cylinder head (23), at least one crankcase (3) and at least one cylinder (4) are equipped in internal combustion engine (2), cylinder is connected at least one air inlet pipeline (5), crankcase (3) is connect by crankcase ventilation pipeline (11) at least one described air inlet pipeline (5), and crankcase ventilation pipeline (11) is at least mainly disposed in internal combustion engine (2), especially engine cylinder body (24) and/or cylinder head (23) is interior.
Description
Technical field
The device for the exhausted by crankcase that the present invention relates to a kind of for making internal combustion engine, especially crankcase ventilation pipeline.
Background technique
In internal combustion engine, in particular in the internal combustion engine with piston or cylinder of motor vehicle, gas can accumulate in crankshaft
In case.People are also referred to as crank case gases.This is it is usually because come from the crank case gases of combustion chamber (or cylinder) through piston
Other gap enters inside crankcase.Crank case gases are usually also referred to as " gas leakage " (Blowby-Gas).It is entering crankcase
Before without waste gas purification.In addition, crank case gases usually contain a large amount of unburned or unburnt ingredients.Therefore bent
Crankcase gas should not be discharged into environment from crankcase.But crank case gases should be led from (usually airtight) crankcase
Out, to avoid the pressure increase in crankcase.Pressure increase should be avoided, especially to prevent internal combustion mechanism part and its attachment from damaging
It is bad.This is particularly suitable for sealing element.
Known such internal combustion engine, crank case gases are discharged crankcase and are supplied to combustion chamber again wherein, make
Obtain the exhaust aftertreatment that exhaust system is supplied to after it can be rekindled in a combustion chamber (such as by catalyst converter).This scheme
It is usually legal provisions in internal combustion engine and is referred to as " exhausted by crankcase ".
Known system has the pipeline being arranged on crankcase in outside thus, which can for example be made of rubber.This
The shortcomings that kind pipeline, is that crank case gases may leak out crankcase in blow-by.This is based on legal provisions and/or ring
Border reason is particularly disadvantageous.
In known systems, the leakproofness of crankcase ventilation pipeline is diagnosed or can not or be needed with very great Hua
Expense is to realize (may be by additional sensor).Even if detecting blow-by, also it is not excluded for internal combustion engine in such systems and exists
It is temporarily, at least continued to run in the case where blow-by.
Summary of the invention
In view of this, solving or at least mitigating to combine technology described in the prior art task of the invention lies in further
Problem.It should especially propose a kind of internal combustion engine, be dropped significantly in the blow-by risk for wherein making crank case gases that can enter environment
It is low and be possibly even excluded, so as to save complicated diagnosis.
The task is solved by internal combustion engine according to the features of claim 1.Other Advantageous embodiments of internal combustion engine
It provides in the dependent claims.The feature individually listed in claim can be significant in any technology mode each other
It combines and can be supplemented by the explanatory fact in specification, other embodiments of the present invention are shown here.
The apparatus according to the invention is the internal combustion engine for including engine cylinder body and cylinder head.At least one is equipped in internal combustion engine
A crankcase and at least one cylinder, cylinder are connected at least one air inlet pipeline.Crankcase passes through crankcase ventilation pipeline
It is connect at least one described air inlet pipeline.Crankcase ventilation pipeline is at least most of to be arranged in internal combustion engine, especially starts
In machine cylinder body and/or cylinder head.
Internal combustion engine for example can be the internal combustion engine for motor vehicle.One or more cylinders constitute a burning of internal combustion engine
Room/multiple combustion chambers, fuel can be with one combust of air wherein.Engine cylinder body surrounds cylinder.Preferred engine cylinder body is real
It is now casting.Cylinder head closes engine cylinder body.Other than engine cylinder body, internal combustion engine also has cylinder head, preferably
It is embodied as casting.Engine cylinder body and cylinder head are fixedly secured to one another.It is preferred that at least one described cylinder is arranged in engine cylinder
It is closed in vivo and in side by cylinder head.Crankcase constitutes a space, is limited by engine cylinder body and/or cylinder head
It is fixed.Crankcase forms cavity in engine cylinder body and/or in cylinder head, can gather crank case gases in the cavity.
Air is supplied at least one described cylinder by least one described air inlet pipeline.At least one described air inlet pipe
Road can for example be configured to the pipe between motor vehicle ambient enviroment and at least one described cylinder.It is preferred that at least one described air inlet
At least one components described below is equipped in pipeline:
Air filter,
Throttle valve, and
Cooling device.
It is discharged from crankcase and in order to which gas in the crankcase will be gathered again for being applied to burning, setting crankcase leads to
Air pipe line.It is preferably attached to gather on the crankcase of crank case gases.In addition, crankcase ventilation pipeline be preferably attached into
On air pipe, so that crank case gases are based on negative pressure present in air inlet pipeline and are inhaled into air inlet pipeline.Term " negative pressure "
Refer to that the negative pressure relative to the stress level in crankcase is horizontal herein.Especially that is, crankcase ventilation pipeline is excellent
Choosing is connected on position as air inlet pipeline, (temporarily, at least) is existed than in crankcase in air inlet pipeline at the position
Lower pressure.In internal combustion engine --- it has different pressure point under different operating statuses in air inlet pipeline
Cloth --- crankcase ventilation pipeline is preferably constructed in this way, so that can be supplied to air inlet pipeline according to operating status crank case gases
Another position at.For example settable such system thus comprising the crankcase ventilation pipeline or crankcase of multiple branches
Branch on air pipeline, they can be controlled by valve or valve, so that being discharged according to the operating status of internal combustion engine in crankshaft
Setting flows path for the crank case gases of the operating status between case and air inlet pipeline.
It may leak into environment in order to solving crank case gases upper (especially when pipeline does not connect correctly)
Problem is stated, crankcase ventilation pipeline is arranged at least most ofly in engine cylinder body or in cylinder head.
It is preferred that crankcase ventilation pipeline be arranged in engine cylinder body in this way or cylinder head in, enable without gas from
Crankcase ventilation pipeline leaks into environment.It is preferred that exhausted by crankcase only carries out in engine cylinder body or in cylinder head, thus
The crank case gases being discharged from crankcase can pass through crankcase ventilation without departing from engine cylinder body and cylinder head
Pipeline imports in the region of air inlet pipeline being arranged in crankcase area.It can ensure that crank case gases will not be let out in this way
It drains in environment.
Crankcase ventilation pipeline, which is arranged at least most ofly in engine cylinder body or cylinder head, refers to crankcase bleed pipe
Road at least 50%, preferably at least 75% and particularly preferably at least 90% setting are in engine cylinder body and cylinder head.Percentage
It is related to the crankcase ventilation pipeline length measured along the extension of crankcase ventilation pipeline.Percentage explanation provides crankcase bleed pipe
The part that road is arranged in engine cylinder body or cylinder head accounts for the ratio of entire crankcase ventilation pipeline (it may include multiple branches)
Example.
In a preferred embodiment, internal combustion engine further includes the compressor of air in the air inlet pipeline for compression, bent
Crankcase ventilation pipeline is that have branch (verzweigt) and be in compressor downstream connection at least one first connecting portion position
On to air inlet pipeline and branch's out branch at branch part, the branch are connected at least one second company of upstream of compressor
On socket part position.
It is preferred that entering for the compressor for compressing air inlet is arranged in the connection between crankcase ventilation pipeline and air inlet pipeline
At mouthful.Introduction part of the crank case gases into suction port of compressor is the integrated component part part of compressor, and no matter compressor is embodied as
Which type of booster body (either turbocharger or air compressor).Crankcase ventilation pipeline and air inlet pipeline exist
The connection of inlet is the fixation building block of the non-disconnectable installation of internal combustion engine in other words.This is equally applicable to crankcase ventilation
The connection of pipeline and crankcase (in the exit of engine crankcase).The connection is also the non-disconnectable fixation installed in other words
Building block.
Compressor for example can be exhaust-driven turbo-charger exhaust-gas turbo charger.Pressure operation can be distinguished in the internal combustion engine with compressor
(wherein by the air in compressor compresses air inlet pipeline, so that air is pressed into cylinder) and without pressure operation (at it
In do not occur compression and air be inhaled into cylinder).In the admittance area of cylinder in no pressure operation (Saugbetrieb)
The upper negative pressure existed suitable for exhausted by crankcase (i.e. it is lower than the pressure in crankcase).Therefore, excellent in no pressure operation
Choosing uses the crankcase ventilation pipeline being connected on cylinder intake region.This can currently pass through one of crankcase ventilation pipeline
Divide and realize, which is in compressor downstream connection to air inlet pipeline at least one first connecting portion position.This term " under
Trip " indicates the downstream on (usually existing) flow direction, therefore at least one described first connecting portion position is arranged in compressor
Between one or more cylinders.
On the contrary, the pressure in pressure operation in the air inlet pipeline in compressor downstream is increased by compressor, thus crankshaft
Case exhaust cannot be carried out by this part pipeline of crankcase ventilation pipeline.Exhausted by crankcase preferably passes through branch in pressure operation
Road carries out, which is connected at least one described second connecting portion position of upstream of compressor.It is being compressed in pressure operation
There is the negative pressure (i.e. it is lower than the pressure in crankcase) suitable for exhausted by crankcase in machine upstream.This is especially because compressor
It sucks air to be compressed and thus generates negative pressure in upstream.Usually at least one described second company in no pressure operation
There is also negative pressure at socket part position.But the negative pressure is less than the current negative pressure at the first air inlet position in compressor downstream.Therefore, crankshaft
The branch of case air pipeline is advantageous, allow at the first air inlet position it is temporary be vented and at the second air inlet position
Temporarily exhaust.
Exhausted by crankcase preferably can be according to the operating status of internal combustion engine optionally through one of crankcase ventilation pipeline
Or Liang Ge branch carries out.It --- especially at branch part --- is preferably provided with valve (valve) or switch thus.Valve itself can
Constitute branch part.What valve can be passively or can be switched.Passive valve directly pass through the pressure difference at various inlet position into
Enter desired position.Aggressive valve is actively controlled (may be electronically), to establish and wish the company at air inlet position
It connects.
In another preferred embodiment of internal combustion engine, multiple cylinders are set.For each cylinder be arranged at least one
One connecting portion.
It is preferred that the such branch of air inlet pipeline, so that air inlet pipeline is individually connected to the phase of each cylinder by corresponding branch
It answers on admittance area.The corresponding first connecting portion position of cylinder is preferably provided in the respective branch of air inlet pipeline.Thus crankcase
Gas can be distributed evenly on all cylinders.This be at least suitable for internal combustion engine without pressure operation, exhausted by crankcase is logical wherein
Cross the progress of first connecting portion position.
In another preferred embodiment of internal combustion engine, being arranged in branched portion except internal combustion engine and pass through can not
It tears open to be connected at first connecting portion position and be connect with air inlet pipeline.
Term " except internal combustion engine " refers in particular to branch and is not disposed in engine cylinder body in gentle cylinder cap.
By Structure of Internal-Combustion Engine it is found that air inlet pipeline is in this way, make branch must be at least partly except crankcase
Extend.This is particularly suitable for compressor not situation of the direct forming on engine cylinder body or in cylinder head.The external portion of branch
Divide preferably as short as possible.Preferably at least the exterior section of branch is made of such material and construction in this way is (especially in tube wall
Material thickness in terms of), so that ensuring leakproofness in the entire service life of motor vehicle.Branch is especially preferably selected in this way
The material of exterior section, so that it shows aging phenomenon as few as possible, especially in material related with seal for pipe joints
In terms of characteristic (porosity, rigidity, bendability, brittleness, gas permeability etc.).The exterior section of branch especially may also comprise more
The pipeline of a coaxial arrangement combines, they can particularly securely prevent gas from going out from branch internal leakage on the whole.It is preferred that propping up
Road itself also can not individually releasably, when necessary with some materials of crankcase ventilation pipeline being arranged in internal combustion engine in locking manner
Connection.
" non-disconnectable connection " is interpreted as under maintenance measures in booster body and engine interior in the sense of the present invention
Crankcase ventilation pipeline between connection be compulsory.
Term " non-disconnectable connection " also preferably is understood as such connection, in not damaged member, especially crankcase
It can not be separated in the case where air pipeline, air inlet pipeline and the connector that may be arranged between it.Thus it can ensure that and pacify in factory
The connection cannot separate again after dress (such as testing in being sealed property).To which also there is no occur only portion when reconnecting
The risk of connection divide, imperfect.It is preferred that construct non-disconnectable connection in this way so that its in the entire service life of motor vehicle all
It cannot separate and without separation.It is preferred that especially constructing internal combustion engine in this way, all possible maintenance (example is allowed for
Such as include dismounting and installation component), and the presence of non-disconnectable connection does not constitute obstruction herein.
In another preferred embodiment of internal combustion engine, branch at most 25% is arranged except crankcase.It is preferred that branch
Be arranged in the part except crankcase be technically configured to it is as short as possible.
The condition is related to the leg length measured along the extension of branch.It is set by selecting this short branch that can reduce branch
Set the risk of the blow-by except crankcase.It is preferred that branch or even only most 5% settings are except crankcase.Furthermore it is preferred that
The part that branch is arranged in except engine cylinder body or cylinder head is up to 20cm (centimetre), especially only 10cm long.
In another preferred embodiment of internal combustion engine, branch has check-valves (valve), is arranged in internal combustion engine.
But in other embodiments, check-valves is also configured as integrated component part part (the especially compressor valve plate of compressor
(Verdichterbogen))。
Term " in internal combustion engine " refers in particular to branch and is arranged in engine cylinder body or cylinder head (also referred to as valve mechanism cover)
It is interior.
As described above, crankcase ventilation pipeline is configured to from crankcase import gas in inlet channel.But air inlet pipe
Pressure in road is also greater than the pressure in crankcase according to engine operating conditions.This is particularly suitable for the pressure in compressor downstream
Power.Air may enter in crankcase by crankcase ventilation pipeline and increase the pressure of there in this case.
Crankcase can be entered from air inlet pipeline as described above especially by branch air.Therefore non-return is set in branch
Valve.Check-valves is preferably oriented from branch part towards second connecting portion position by direction.By the check-valves, especially in institute
Description by direction orient in can preferably prevent air from entering crankcase as described from air inlet pipeline.Check-valves is arranged
Blow-by risk can be just significantly reduced in the component that this is easily leaked out in internal combustion engine and therefore significantly reduces crankcase gas
The risk that body overflows.It is preferred that check-valves is integrated into internal combustion engine in this way, prevent gas is from spilling into ring from check-valves (valve)
In border.
In another preferred embodiment of internal combustion engine, control valve (also referred to as control unit) is set in internal combustion engine,
It is connected on crankcase by the control valve crankcase ventilation pipeline.
Term " in internal combustion engine " indicates that control valve (control unit) is arranged in internal combustion engine, especially in engine cylinder body
In interior or cylinder head.
Control valve (control unit) refers to such device herein, can be targetedly by it --- for example pass through electronics
Control is intervened --- and control crankcase passes through the exhaust of crankcase ventilation pipeline.
Control valve (control unit) is preferably configured for for the pressure in crankcase being maintained at desired horizontal upper or wish
It is below horizontal.It is then preferred that control valve (control unit) is for more recited above between crankcase ventilation pipeline branch
(in internal combustion engine difference operating status) switching.It is preferred that control valve (control unit) have an entrance, the entrance with wait arrange
The crankcase of gas connects.Furthermore control valve preferably has there are two outlet, is respectively used to each branch of crankcase ventilation pipeline.
In the crankcase ventilation pipeline with more than two branch, control valve is each preferably for each branch of crankcase ventilation pipeline
With one outlet.Control valve is preferably provided in crankcase.Identically as in check-valves more recited above, it thus can keep away
Exempt from the blow-by of control valve.It is preferred that control valve is integrated in internal combustion engine in this way, prevent gas is from being moved out to environment from control valve
In.
Control valve can prevent the hypotony in crankcase.Since the low-pressure of crossing in crankcase can lead to crank case gases
Generation increased with undesirable degree, mode are as follows: gas in cylinder is actively inhaled into crankcase from by piston.Separately
Outside, since especially low pressure can also cause the damage of other components, such as sealing element, this can be avoided by using control valve.
It is preferred that control valve is Pcv valve.Control valve can be volume flow or mass flow control or pressure control.
In another preferred embodiment of internal combustion engine, crankcase ventilation pipeline is in engine cylinder body and/or cylinder head
Groove in the material for being implemented partly as engine cylinder body and/or cylinder head of interior extension.
It at least will not be blow-by between its end by the pipeline that the groove in material block is realized.Therefore in the implementation
The spilling of crank case gases can be particularly effectively prevented in mode.
In another preferred embodiment of internal combustion engine, crankcase ventilation pipeline is embodied as casting or drilling logical
Road.
When engine cylinder body and/or cylinder head are embodied as one or two casting, being cast in channel therein can be special
It obtains protecting to prevent blow-by well.
Present invention is preferably used in the motor vehicle with above-mentioned internal combustion engine.
It is above-mentioned that specific advantages described in internal combustion engine and design feature can be used for and are transferred on the motor vehicle.
Detailed description of the invention
Below with reference to the accompanying drawings the present invention and technological accumulation and inheritance are elaborated.Attached drawing shows particularly preferred embodiment, but this hair
It is bright not limited to this.Especially it is to be noted, that attached drawing and especially illustrated dimension ratio are only schematical.Attached drawing is as follows:
Fig. 1 shows the schematic diagram of the motor vehicle with internal combustion engine；
Fig. 2 shows according to prior art, the perspective view of the internal combustion engine with crankcase ventilation pipeline；
Fig. 3 shows the perspective view of the internal combustion engine with crankcase ventilation pipeline；And
Fig. 4 shows the sectional view of the internal combustion engine of Fig. 3.
Specific embodiment
Fig. 1 schematically shows the motor vehicle 1 with internal combustion engine 2, which includes the crankcase 3 with cavity 17.?
Cylinder 4 there are four setting on crankcase 3, they pass through admittance area 9 respectively and are connected on air inlet pipeline 5.Air inlet pipeline 5 has sky
Air filter 8, throttle valve 21 and cooling device 22.In addition, cylinder 4 is connected on gas exhaust piping 6 via exhaust gas region 10.Construction
It had both been connected on air inlet pipeline 5 and had been also connected on gas exhaust piping 6 for the compressor 7 of exhaust-driven turbo-charger exhaust-gas turbo charger.Crankcase bleed pipe
Road 11 is mainly disposed in internal combustion engine 2.Crankcase ventilation pipeline 11 is at four first connecting portion positions 13 in 7 downstream of compressor
It is connected in admittance area 9 on air inlet pipeline 5.The branch 12 of expenditure crankcase ventilation pipeline 11 is punished in branch part 25.It should
Branch 12 is connected on air inlet pipeline 5 at the second connecting portion position 14 of 7 upstream of compressor, and the second connecting portion position is configured to
Non-disconnectable connection 18.Control valve 15 is equipped at branch part 25.Branch 12 has check-valves 16 in internal combustion engine 2.The non-return
Valve 16 is oriented by direction from branch part 25 towards second connecting portion position 14.
Fig. 2 shows internal combustion engine 2 according to prior art.It can see exterior line 26, be configured to rubber hose.It is external
Pipeline 26 is connected externally on crankcase 3 and air inlet pipeline 5 and be used for the exhaust of crankcase 3 by releasable connection.It is external
Pipeline 26 cannot be reliably prevented crank case gases and leak into environment and can only also diagnose leakage by high cost.
Fig. 3 shows the above-mentioned internal combustion engine 2 with crankcase 3.Crankcase ventilation pipeline 11 is mainly disposed to engine cylinder body
24 or cylinder head 23 in.In addition, crankcase ventilation pipeline 11 is connected at second connecting portion position 14 by non-disconnectable connection 18 herein
It is connected on air inlet pipeline 5.
Fig. 4 illustrates the internal combustion engine 2 of Fig. 3 with details.As can be seen that crankcase ventilation pipeline 11 is realized with groove 19, this
A little grooves constitute casting channel (eingegossenen Kanal) 20.
Reference signs list
1 motor vehicle
2 internal combustion engines
3 crankcases
4 cylinders
5 air inlet pipelines
6 gas exhaust pipings
7 compressors
8 air filters
9 admittance areas
10 exhaust gas regions
11 crankcase ventilation pipelines
12 branches
13 first connecting portion positions
14 second connecting portion positions
15 control valves
16 check-valves
17 cavitys
18 non-disconnectable connections
19 grooves
20 casting channels
21 throttle valves
22 cooling devices
23 cylinder head
24 engine cylinder bodies
25 branch parts
26 exterior lines
Claims (10)
1. internal combustion engine (2), which includes engine cylinder body (24) and cylinder head (23), is equipped at least in internal combustion engine (2)
One crankcase (3) and at least one cylinder (4), the cylinder are connected at least one air inlet pipeline (5), crankcase (3)
It is connect by crankcase ventilation pipeline (11) at least one described air inlet pipeline (5), and crankcase ventilation pipeline (11) is extremely
Major part is arranged in internal combustion engine (2) less, especially engine cylinder body (24) is interior and/or cylinder head (23) is interior.
2. internal combustion engine (2) according to claim 1 further includes the compression of the air for being compressed in air inlet pipeline (5)
Machine (7), wherein the crankcase ventilation pipeline (11) is that have branch and be at least one first connecting portion position (13)
Branch's out branch (12), the branch connect in compressor (7) downstream connection to air inlet pipeline (5) and at branch part (25)
Onto at least one second connecting portion position (14) of compressor (7) upstream.
3. internal combustion engine (2) according to claim 2, wherein be provided with multiple cylinders (4), and set for each cylinder (4)
Set one of at least one described first connecting portion position (13).
4. the internal combustion engine according to any one of Claims 2 or 3 (2), wherein the branch (12) is partially disposed within
Combustion engine (2) is external and is connect at first connecting portion position (13) with air inlet pipeline (5) by non-disconnectable connection (18).
5. internal combustion engine (2) according to any one of claim 2 to 4, wherein the setting of branch (12) at most 25% exists
Internal combustion engine (2) is external.
6. the internal combustion engine according to any one of claim 2 to 5 (2), wherein the branch (12) has check-valves
(16), check-valves setting is in internal combustion engine (2).
7. the internal combustion engine according to any one of claim 2 to 6 (2), wherein be provided with control valve in internal combustion engine (2)
(15), crankcase ventilation pipeline (11) is connected on crankcase (3) by the control valve.
8. the internal combustion engine according to any one of claim 2 to 7 (2), wherein the crankcase ventilation pipeline (11)
What is extended in engine cylinder body (24) and/or cylinder head (23) is implemented partly as engine cylinder body (24) and/or cylinder head (23)
Material internal groove (19).
9. internal combustion engine (2) according to any one of the preceding claims, wherein the crankcase ventilation pipeline (11) is realized
To be poured channel (20).
10. motor vehicle (1), including the aforementioned internal combustion engine according to any one of claim (2).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102016219344.9 | 2016-10-06 | ||
| DE102016219344.9A DE102016219344A1 (en) | 2016-10-06 | 2016-10-06 | Device for venting a crankcase of an internal combustion engine |
| PCT/EP2017/071181 WO2018065147A1 (en) | 2016-10-06 | 2017-08-23 | Device for the ventilation of a crankcase of an internal combustion engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109415959A true CN109415959A (en) | 2019-03-01 |
Family
ID=59745278
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201780039976.1A Pending CN109415959A (en) | 2016-10-06 | 2017-08-23 | For making the device of the exhausted by crankcase of internal combustion engine |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US10794245B2 (en) |
| EP (1) | EP3523514B1 (en) |
| CN (1) | CN109415959A (en) |
| DE (1) | DE102016219344A1 (en) |
| WO (1) | WO2018065147A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114320526A (en) * | 2020-09-30 | 2022-04-12 | 深圳臻宇新能源动力科技有限公司 | Crankcase ventilation system and air leakage diagnosis method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005113844A (en) * | 2003-10-10 | 2005-04-28 | Nissan Motor Co Ltd | Intake system of internal combustion engine |
| CN101575996A (en) * | 2008-05-07 | 2009-11-11 | 中国第一汽车集团公司 | Built-in channel crankcase ventilation structure of cylinder body |
| CN104428502A (en) * | 2012-10-16 | 2015-03-18 | 丰田自动车株式会社 | Blowby gas ventilation system for supercharger-equipped internal combustion engine |
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Also Published As
| Publication number | Publication date |
|---|---|
| US20190170033A1 (en) | 2019-06-06 |
| DE102016219344A1 (en) | 2018-04-12 |
| EP3523514B1 (en) | 2022-06-15 |
| EP3523514A1 (en) | 2019-08-14 |
| WO2018065147A1 (en) | 2018-04-12 |
| US10794245B2 (en) | 2020-10-06 |
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